﻿.children-wrapper {
    position: relative;
}

    .children-wrapper::before {
        content: '';
        height: 95%;
        width: 5px;
        top: 50%;
        transform: translateY(-50%);
        background-color: #ccc;
        display: inline-block;
        position: absolute;
        border-radius: 5px;
        left: 5px;
    }
